Round digital hygrometer



FIG. 1 is a front elevation view of the round digital hygrometer, showing my novel design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view of the round digital hygrometer of the present invention as shown mounted in a cigar humidor.

The broken lines shown in FIGS. 1 and 7 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a round digital hygrometer, as shown and described. 